Status: Native
Synonyms:
Euphrosyne ambrosiifolia A. Gray
Cyclachaena ambrosiifolia (A. Gray) Rydberg
Iva ambrosiifolia (A. Gray) A. Gray
Hedosyne ambrosiifolia has twice to three times pinnate leaves that are up to about 10 cm long and 6 cm wide. The leaves look much like those of Ambrosia acanthicarpa. However, the small flowers are paniculate rather than racemose. Hedosyne ambrosiifolia is woody toward the base although it is an annual. It is erect but much branched. When first looking at this plant, it gives the impression of an Ambrosia mixed up with an Artemisia! Rather than having staminate flowerheads held separately above and pistillate heads fewer and in leaf axils as in Ambrosia, Hedosyne ambrosiifolia has 5-10 ray flowers and 5-10 disc flowers in the same inflorescence. Hedosyne ambrosiifolia is found on dry cliffs and hillsides at lower to middle elevation.
Please click on an image for a larger file.
Hedosyne ambrosiifolia, photo Russ Kleinman, Mimbres Valley, Acklin Hill, Aug. 20, 2009
Hedosyne ambrosiifolia, closeup of leaf, photo Russ Kleinman, Mimbres Valley, Acklin Hill, Aug. 20, 2009
Hedosyne ambrosiifolia, closeup of branch, photo Russ Kleinman, Mimbres Valley, Acklin Hill, Aug. 21, 2009
Hedosyne ambrosiifolia, 3x field macro of inflorescence with both pistillate and staminate florets in same flowerhead, photo Russ Kleinman, Mimbres Valley, Acklin Hill, Aug. 21, 2009
Hedosyne ambrosiifolia, leaf measurement, photo Russ Kleinman, Mimbres Valley, Acklin Hill, Aug. 21, 2009
Hedosyne ambrosiifolia, inflorescence measurement, photo Russ Kleinman, Mimbres Valley, Acklin Hill, Aug. 21, 2009
Back to the Index